A week after Chattanooga shooter Mohammad Abdulazeez’s attack, very little is known about his motives, path to radicalization, and network of affiliations. Immediately after the attack, Islamic State (IS) fighters and supporters hailed Abdulazeez as a “soldier of the Islamic State,” but no official messages from IS claiming the attack have yet been made. This silence is noteworthy considering the case of the shooting in Garland, Texas: Not only did IS fighter Junaid Hussain bluntly indicate his connection to this attack, but in less than two days, IS officially announced the shooters to be “two soldiers from the soldiers of the Caliphate.”

Muhammad Youssef Abdulazeez, identified as the July 16, 2015 shooter of four Marines at a Naval Reserve Center in Chattanooga, Tennessee, maintained a blog containing two Islam-focused posts made just three days before the attack.

The United Dixie White Knights of the Ku Klux Klan (UDWK) warned the Memphis City Council and Tennessee authorities of potential retaliation should the remains of Confederate General Nathan Bedford Forrest be removed from the Health Sciences Park in Memphis, Tennessee.

Anarchists have provided vehement responses to police crack-downs on their brethren in the Czech Republic, including setting fire to police cars in the country and making implied threats for further retaliation. The attacks have been explained as a countermeasures to "Operation Fenix," a campaign by Czech police officers targeting various anarchist organizations.